Digital Radio Receiver Down Converter Modules for 37 to 40␣ GHz Technical Data DRR1-38XX Features Description • Low Noise PHEMT MMIC Front End Amplifier This digital radio receiver module provides the RF receive and down conversion function for 38 GHz digital radios. • Image Reject Mixer • Integrated Silicon Bipolar VCO Local Oscillator • Low Phase Noise • Operated Over -30°C to +70°C • Excellent Tuning Linearity • Sample Output for Phase Locking This module offers excellent phase noise performance and can be easily phase locked to a frequency reference. The receiver module is ideal for use in radios using 2 and 4 FSK modulation. The low noise figure is achieved by using the Hewlett-Packard PHEMT MMIC technology coupled with an image reject mixer to minimize the noise figure. The receiver module features an integrated ultra low Block Diagram Receiver Module Tuning Voltage BPF LO X3 AMP AMP X3 AMP Signal Sample Output MMIC +4 BPF MMIC MMIC AMP IF Output 5965-5088E RF Input LNA MIXER 8-8 37.0 to 40.0 GHz noise silicon bipolar VCO operating in the S/C band as the local oscillator. A portion of the oscillator output is coupled off and is applied to a frequency divider network. The low frequency output from the frequency divider can be used to phase lock the source. The local oscillator output is applied to a frequency multiplier network to produce the desired LO frequency to the mixer. Applications The digital radio receiver module provides the total RF receive and down conversion function in radios operating in the 37 to 40␣ GHz band. DRR1-38XX Absolute Maximum Ratings (TA = -30 to +70ºC) Parameters DC Circuit Power +8.5 +5.0 -5.0 Tuning Voltage Units Volts Volts Volts Volts Ratings 10 +5.5 -5.5 14 Notes: 1. Operation in excess of any one of these parameters may result in permanent damage. 2. A thermal interface medium must be used between the bottom of the package and its mating surface to ensure optimum heat transfer. DRR1-38XX Electrical Characteristics Parameters Units RF Tuning Range GHz IF Frequency MHz IF Bandwidth MHz LO Frequency GHz Gain[1] dB Gain Flatness over 300 MHz dB Noise Figure dB Operating Temperature Range °C Power Input at P-1dB dBm LO Leakage at I[2] dBm LO Leakage at R[3] dBm Return Loss RF Port[4] dB Return Loss IF Port dB Image Rejection dB Sample Out Frequency MHz Sample Out Power dBm Spurious Output[5] dBc Phase Noise @ 100 KHz dBc/Hz Tuning Voltage V Input Capacitance, Nom pf LO Tuning Sensitivity MHz/V LO Tuning Sensitivity Variation DC Circuit Power: 8.5 Volts mA 5 Volts mA -5 Volts mA Case Dimensions inches Max Power at Input/no damage dBm Humidity Non Condensing % Condensing % Connectors Min. Typ. Max. 37 Extended Range 39.5 – 40.0 39.5 40 27 ±1 9 70 16 Min ± 1.5 9.5 Max 630 or 1260 ± 20 RF – IF 18 7.5 -30 -20 -17 -15 -15 8 14 10 1,010 -10 10 13 -83 1 5 Min 1,080 0 -60 -80 12 1,094 15 Max 1,000 400 500 1.5 : 1 270 350 470 650 20 30 3.5 x 1.25 x 0.40 7 85 95 WR 28 Notes: 1. Gain degrades to 16␣ dB minimum from 39.5 to 40␣ GHz. 2. LO and Harmonic/sub-harmonic leakage at I with RF terminated into a waveguide. 3. LO and Harmonic/sub-harmonic leakage at R up to 50 GHz. 4. RF port return loss degrades to 5␣ dB minimum from 39.5 to 40␣ GHz. 5. Measured at IF port within the IF bandwidth with single tone RF input of < - 20 dBm. 8-9 DRR1-38XX Typical Performance 22 20 24 22 T = +25°C T = –30°C T = +70°C 18 37.5 18 16 14 12 10 Spec Min 16 36.5 38.5 39.5 FREQUENCY (GHz) 7 T = +25°C T = –30°C T = +70°C 6 37.5 38.5 39.5 5 36.5 40.5 37.5 FREQUENCY (GHz) Figure 1. Conversion Gain vs. Frequency. T = +25°C T = –30°C T = +70°C -20 41 -40 40 FREQUENCY (GHz) dBc (Hz) -20 39.5 40.5 Figure 3. Noise Figure vs. Frequency. -10 -15 38.5 FREQUENCY (GHz) Figure 2. Image Rejection vs. Frequency. -5 P IN (dBm) 8 Spec Min 8 36.5 40.5 Spec Max -60 -80 -100 600 500 TUNING VOLTAGE 39 400 38 MODULATION SENSITIVITY 300 37 Spec Min -25 36.5 37.5 38.5 39.5 40.5 FREQUENCY (GHz) -120 10 100 1000 2 KHz Offset from Carrier 4 6 8 10 Figure 5. Phase Noise at 40 GHz vs. KHz Offset from Carrier. Powering Up Instructions turned off. The +8.5␣ volts can be turned on in any sequence. Failure to follow this procedure could cause permanent damage to the module. Mounting Instructions Case must be mounted firmly, with screws, to an adequate metallic structure that has sufficient thermal properties to maintain the module case at a temperature not to exceed 70°C. Specify part number followed by option. For example: DR R 1 – 38 X X 3 = WR-28 Waveguide Connector R = Receiver Module 1 = 630 MHz IF Frequency 2 = 1260 MHz IF Frequency Internal Use 38 = 37 to 40 GHz Frequency Band 8-10 14 Figure 6. Tuning Voltage vs. Frequency and Modulation Sensitivity. Product Options Model Number Prefix = Digital Radio 12 TUNING VOLTAGE (V) Figure 4. Power In at P1dB Out vs. Frequency. The -5 volts must be applied to the receiver module before applying the +5 volts. Likewise when shutting down the receiver module the +5␣ volts must be removed before the -5 volts is 200 36 1 MODULATION SENSITIVITY (MHz/V) 26 20 9 T = +25°C T = –30°C T = +70°C NOISE FIGURE (dB) Spec Max IMAGE REJECTION (dB) CONVERSION GAIN (dB) 28 Case Dimensions (specified in inches) H DRRI-38XX S/N XXXX D/C XXXX GND F/4 +5V VT GND -5V +5V +8.5V GND 1F +8.5V 1.250 11x .200 2.700 3.50 8x .100 1.10 .40 MAX 11x .220 1.70 11x Ø .025 2.35 SEE DETAIL A 2.430 .120 .445 .500 .445 .500 .700 .530 .112 .500 .125 6x Ø .120 THRU .224 Ø .067 ±.001 .100 4X 4-40 UNC-2B .110 .328 DETAIL A 8-11